Summary
Origins
- Posterior aspect of lateral epicondyle of the 🦴 humerus
Insertions
- Lateral surface of olecranon process and proximal posterior 🦴 ulna
Actions
- Assists triceps brachii in elbow extension
- Stabilizes the elbow joint
- Abducts the ulna during forearm pronation
Illustrations
Examples
Related Muscles
- extensor carpi radialis longus (ECRL)
- extensor carpi ulnaris (ECU)
- extensor digitorum (ED)
- flexor digitorum profundus (FDP)
- triceps
Relationship between triceps and anconeus
The triceps brachii and anconeus are muscles that work together to straighten the elbow.
- The triceps is the bigger muscle with three parts and does most of the work to extend the arm.
- The anconeus is a smaller helper muscle near the elbow. It assists the triceps and helps stabilize the joint during movement.
They are closely connected and often work as a team for elbow extension and stability.